Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1196749 | Journal of the American Society for Mass Spectrometry | 2006 | 5 Pages |
Abstract
Amino acid clusters have been studied by several groups and most notably magic number clusters and chiral recognition have been reported. In this work, we have studied the formation of amino acid clusters by electrospray ionization (ESI) and their stability by high-energy collision-induced dissociation (CID). Appearance sizes were determined for multiply charged clusters where the charge is either due to protons or to sodium ions. Finally, we conclude that chiral selectivity plays an important role in cluster formation but seems to be of minor importance for the fragmentation of mixed clusters.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
B. Concina, P. Hvelplund, A.B. Nielsen, S. Brøndsted Nielsen, J. Rangama, B. Liu, S. Tomita,